Quick answer. The decision on this page is to order by syllabus, not by code. The listing holds several hundred records, many of them copies of products filed elsewhere on the site, usually recognisable by a digit on the end of the name, and the codes will change as those duplicates are consolidated. Most core mechanical operations units - the roll crusher, trommel, vibrating screen, and the sedimentation and filtration units - are filed in other ranges. Send your experiment list, and ask for every line to be confirmed by full name and by type (model, demonstration unit or instrumented test set) on the proforma invoice.
This is one of the largest listings on the site - several hundred records over more than fifty pages - and we would rather be straight with you about it than let you page through it.
If you came looking for mechanical operations in the chemical engineering sense - size reduction, screening, mixing, filtration, sedimentation and solids handling - the main items are not here. The roll crusher, the trommel and the vibrating screen are currently filed under structural mechanics lab, and the sedimentation, fluidisation and filtration units are under chemical reaction engineering and mass transfer lab equipment. Tell us which unit operations your syllabus examines and we will quote them from wherever they sit; the section below sets out what to ask for.
What this listing actually contains is a large general collection of mechanics and workshop teaching equipment: mechanism and gear models, machine element models such as couplings, foundation bolts and locking arrangements for bolts, working models of cranes and winches, pumps and turbines, manometers and pitot tubes, and a quantity of physics laboratory apparatus - pendulums, Young modulus and rigidity of wires experiments, barometers and Hooke's law apparatus.
A warning that applies to this listing more than to any other. Many of its records are copies of products that also appear elsewhere on this site, and most of the copies can be recognised by a digit on the end of the name - for example a Bernoulli theorem apparatus, a metacentric height apparatus and a piezometer tube that duplicate items in hydraulics and fluid mechanics trainers, and gear and turbine records that duplicate items in engineering training models. So on this listing: do not order by code, ask for the full product name and specification, and ask us to confirm both on the proforma invoice. We are consolidating the duplicate records, and the codes will change when we do.
Since the category name is what brought most visitors here, here is the subject itself - the three jobs mechanical operations equipment does, and what to ask for in each. Send us the rows that match your syllabus and we will quote against them.
| Job | Typical teaching equipment | What to settle before ordering |
|---|---|---|
| Size reduction | Jaw crusher, roll crusher, ball mill, hammer mill, pulveriser | Feed size and product size range; the energy measurement, because the experiment is usually the energy law - the relation between energy input and size reduction - and that needs a power measurement on the mill, not just a stopwatch; noise, dust and guarding; and the sieve set needed to measure the product |
| Separation | Vibrating screen, trommel, sieve shaker, cyclone, plate and frame filter press, leaf filter, thickener, centrifuge, elutriator | How the result is quantified: a screening experiment is only as good as the sieve set and the balance behind it, and a filtration experiment needs a measured filtrate volume against time. Ask what slurry or feed material the exercise assumes and whether it can be sourced locally |
| Transport and handling | Belt, screw and pneumatic conveyors, bucket elevator, fluidised bed, pumps and fans | Capacity and power measurement, the material conveyed, and dust control. For pneumatic conveying ask the air supply requirement, which is usually larger than people expect |
Two requirements run across all three and are routinely left out of a quotation. A sieve set and a balance, because almost every mechanical operations result is a particle size distribution and nothing in this subject can be quantified without them. And dust control: crushers, mills, screens and conveyors generate airborne dust, some of it respirable, so extraction or enclosure, eye protection and respiratory protection belong in the specification rather than in a footnote. Ask us what each unit needs.
Mechanism, gear and machine element models. Couplings, bolt locking arrangements, foundation bolts, gear trains and epicyclic gears, cranes and winch models. These are display and tutorial items: ask what they are made of, whether moving parts actually move, whether the base can be clamped, and whether a labelled sheet comes with each. The organised version of this range, with a priority order for buying, is in engineering training models.
Pumps and turbines. Centrifugal pumps, rotary pumps, Pelton turbines, water wheels and impeller sets. For anything intended to be characterised rather than looked at, the four quantities needed are flow, head, speed and shaft torque - the reasoning is set out on our pump and turbine pages, and the units there are specified for measurement. Ask whether the record here is a working test set or a demonstration model, because the listing does not say.
Manometers, pitot tubes and fluid apparatus. Several of these duplicate the instruments in hydraulics and fluid mechanics trainers, where the fluid, datum and steady-state requirements are set out - including the question to settle before ordering any manometer, which is whether it is mercury-filled.
Physics apparatus. Pendulums, Young modulus and rigidity of wires experiments, Hooke's law apparatus and barometers belong to a physics laboratory rather than a mechanical operations one, and they are better bought from the physics ranges where they are properly described. Ask us and we will point you to the right listing.
Because of the state of this listing, the order of questions matters more than usual. First, send us your syllabus or experiment list rather than a list of codes. Second, ask us to confirm for every line: the full product name, what the item actually is - model, demonstration unit or instrumented test set - the quantities it measures and how, what is supplied with it, its mass and footprint, the services it needs, and the consumables with prices. Third, ask for the sieve set, balance and dust control provisions to be quoted with any size reduction or screening equipment. And ask for everything to be confirmed on the proforma invoice by name as well as code. For any certification stated here, contact us for the latest copies of the relevant certificates before you tender on it.
Related ranges: chemical reaction engineering for reactors, columns, sedimentation and fluidisation, mass transfer lab equipment for dryers, extraction and diffusion, momentum transfer lab equipment for packed beds and two-phase flow, machines for thermodynamics, structures and tribology, and models for theory of machines for dynamics apparatus. The full set is listed under mechanical lab equipments. For a quotation, tell us the destination country, the syllabus you teach and the class size in one practical session.
Mostly not in this listing. The roll crusher, the trommel and the vibrating screen are currently filed under the structural mechanics lab range, and the sedimentation, fluidisation and filtration units sit under chemical reaction engineering and mass transfer lab equipment. Rather than searching for them, tell us which unit operations your syllabus examines - size reduction, screening, mixing, filtration, sedimentation or solids handling - and we will quote each one from wherever it sits, confirmed by full product name.
Many records here are copies of products that also appear elsewhere on the site, and most can be recognised by a digit on the end of the name. A Bernoulli theorem apparatus, a metacentric height apparatus and a piezometer tube duplicate items in hydraulics and fluid mechanics trainers, and some gear and turbine records duplicate items in engineering training models. The duplicates are being consolidated and the codes will change when that happens, so ask for the full name and specification on every line.
Typical teaching equipment is a jaw crusher, roll crusher, ball mill, hammer mill or pulveriser. Settle the feed size and product size range first, then the energy measurement: the experiment is usually the energy law relating energy input to size reduction, which needs a power measurement on the mill, not just a stopwatch. Ask about noise, dust and guarding, and have the sieve set needed to measure the product quoted at the same time, because the result is a particle size distribution.
Almost every mechanical operations result is a particle size distribution, and nothing in the subject can be quantified without a sieve set and a balance; a screening experiment is only as good as both. Crushers, mills, screens and conveyors also generate airborne dust, some of it respirable, so extraction or enclosure, eye protection and respiratory protection belong in the specification rather than in a footnote. These items are routinely left out of quotations, so ask for them alongside any size reduction or screening unit.
The listing does not say, so ask for each record. It includes centrifugal and rotary pumps, Pelton turbines, water wheels and impeller sets. For anything you intend to characterise rather than look at, the four quantities needed are flow, head, speed and shaft torque, and the units on our dedicated pump and turbine pages are specified for that measurement. For the manometers in this listing, settle first whether the instrument is mercury-filled, as set out in the hydraulics and fluid mechanics trainers range.
Send your syllabus or experiment list rather than a list of codes. Then ask us to confirm for every line the full product name; whether it is a model, a demonstration unit or an instrumented test set; the quantities it measures and how; what is supplied with it; its mass and footprint; and the services it needs. Add the destination country and the class size in one practical session. For pneumatic conveying, also ask for the air supply requirement, which is usually larger than people expect.
Ray Export is a manufacturer and exporter of laboratory, scientific and educational equipment based at Plot No. 449, HSIIDC Industrial Area, Saha, Ambala, Haryana 133104, India. Enquiries: [email protected], +91-9817319615.
Written by Palak Mall, Senior Content Writer. Technically reviewed by Arvind Kumar, Lab Equipment Specialist, 12+ years in laboratory and testing instrumentation. Last updated: 17 October 2026.
Specifications for every line, including what the item actually is, what it measures, its mass, footprint and services, are confirmed in writing on the quotation. For any certificate, contact us for the latest copies of the relevant certificates. No price is quoted on this page. Listing notes: several hundred records spread over more than fifty listing pages; many records duplicate products in hydraulics and fluid mechanics trainers and in engineering training models, usually marked by a trailing digit in the name; the main mechanical operations units are filed in other ranges; physics apparatus is filed here; and the listing does not say whether pump and turbine records are working test sets or demonstration models.
Shaft molds made of gentle steel, finish with base plate. (I) Cast press (ii) Steel (a) Size: 10 cm x 10 cm x 50 cm. (b) ..10 cm x 10 cm x 60 cm. ( c)" 15cmx15cmx70cm. Note: Beam molds of any size and speclfications can be provided.
It is made of gentle steel or metal. Appearances machined level. finish with base plate and stainless steel smoothreference focuses. Measure 25 mm x 25 mm, successful check length, These molds can be provided in pack of one, two and threeas for each customer's necessities. Posse of : One, a few (a) Steel, (b) Brass.
IS: 4031-1968: This mechanical assembly is utilized for deciding thefineness of concrete as far as particular surface communicated astotal surface territory In square centimeters per gram for cement.This contraption comprises : Of one penetrability cell, oneManometer mounted on stand, One punctured circle, oneplunger, one elastic plug, one plastic tube with squeeze cock,Complete as clarified..
For conveying the solid chamber in the research facility and thefield. twofold handle makes It simple to hold the barrel duringcaping tasks. Finish with snap brace andcushioning lining. Can be utilized both for 15 cm. dia and 6 inchdia. Chambers.
For topping solid pressure chamber examples. Thisapparatus can be utilized both in the research center and the field.The examples topped In this device have plane parallelcompression closes. .Comprises of a base with an upright. The upright fills in as aguide for situating the topping plate and the chamber. The3/4" thick topping plate is machined precisely. There is arecess in the plate for keeping the liquid topping compoundand to position the chamber. Finish with barrel carrierand spoon For chamber 15 cm dia x 30 cm long..
Solid Mixer research facility write, electrically operated.Designed to expel the weight some work of hand mixing.Uniform altogether blended bunches can be created. Thecounter-adjusted drum is effectively to tilt 1 to 2 cu. fl. blend. Thetotal drum volume is be that as it may, 3 cu. fl. Mounted on a sturdyrubber composed stand: the drum Is mounted for end dischargeand furnished with end towing post. Outfitted with H.P.electric engine, appropriate for task on 220/230 volts, singlephase AC supply..
This is for topping test barrels and center for compressiontesting. It can be utilized both in the research center and the field.The set involves a chamber capper, a barrel bearer and aladle.The chamber capper comprises of a base on which twoaccurately machined plates are mounted. One plate is immovably settled and the other one is movable on a level plane. Two platesare gave holders for holding the barrel In position.The holders are part and the base portion of every holder isfixed immovably and the best 50% of each is removable and bolteddown to the lower half. On the upper parts V-is given forpouring the topping compound. Two spacers are alsoprovided. The chamber bearer is utilized for conveying the cylinderfrom the capacity tank to the capper and back. The spoon is forpouring te liquid topping compound into the V of the capperwhile topping a solid chamber. For examples 15 cms dia x 30 cms in length..
5 cm dla, 30 cm high might be assessed for disfigurement andstrain attributes while experiencing pressure testing.The dial marker demonstrates the normal distortion of thespecimen chamber. In task the compressometer isplaced over the example which Is bolted Into position usingthe mounting screw, and the control bars are removed.Adjustments can be made in the setting of the dial gaugewhich will demonstrate distortion as example is tried. Thedial pointer peruses to .002 mm x 12 mm or .0001 x W'. Thedial marker might be effortlessly expelled from the test specimenby releasing the holding neckline at the highest point of the dial gauge.Complete on the off chance that.
(A) Steel shape form 2.58 " for vibrating machine completewith Base plate. (B) - do - 50 mmx 50 mmx50mm sizes. (c) Cast Iron 3D square form finish with base plate size:5cm x 5 cm x 5 cm. (D) - do - 10 cm x 10 cm x 10 cm Size. (E) - do - 15 cm x 15 cm x 15cm . estimate. (F) - do - 20 cm x 20 cm x 20 cm..
Cast Iron round and hollow molds 15 mmdia x 30 cm high completewith base plate. (B) Size 10 cm x 20 cm.
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